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Immunofluorescence analysis of Phospho-Huntingtin/Htt pSer421 was performed using 70% confluent log phase SH-SY5Y cells which were serum starved (48 h) and stimulated with 50 ng/ml IGF-1 for 30 min. The cells were fixed with 4% paraformaldehyde for 10 minutes, permeabilized with 0.1% Triton™ X-100 for 10 minutes, and blocked with 1% BSA for 1 hour at room temperature. The cells were labeled with Phospho-Huntingtin/Htt pSer421 Rabbit Polyclonal Antibody (PA1087) at 2ug/ml in 0.1% BSA and incubated for 3 hours at room temperature and then labeled with Goat anti-Rabbit IgG (H+L) Superclonal™ Secondary Antibody, Alexa Fluor® 488 conjugate (A27034) at a dilution of 1:2000 for 45 minutes at room temperature (Panel a: green). Nuclei (Panel b: blue) were stained with SlowFade® Gold Antifade Mountant with DAPI (S36938). F-actin (Panel c: red) was stained with Alexa Fluor® 555 Rhodamine Phalloidin (Product # R415, 1:300).Panel d represents the merged image showing cytoplasmic localization. Panel e shows the untreated cells. Panel f shows the control without primary antibody. The images were captured at 60X magnification.
|Tested species reactivity||Mouse, Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Synthetic phosphopeptide conjugated to KLH corresponding to residues GGRSRSG(pS)IVELI (414-426) of Human HTT|
|Storage buffer||PBS with 1mg/ml BSA|
|Contains||0.05% sodium azide|
|Tested Applications||Dilution *|
|Immunocytochemistry (ICC)||2 µg/ml|
|Immunofluorescence (IF)||2 µg/ml|
|Immunohistochemistry (IHC)||1:100 - 1:200|
|Western Blot (WB)||1:500|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
PA1-087 has been successfully used in immunofluorescence, immunohistochemistry, and Western blotting applications on human and mouse samples.
Huntingtin is a disease gene linked to Huntington's disease, a neurodegenerative disorder characterized by loss of striatal neurons. This is thought to be caused by an expanded, unstable trinucleotide repeat in the huntingtin gene, which translates as a polyglutamine repeat in the protein product. The huntingtin locus is large, spanning 180 kb and consisting of 67 exons. The huntingtin gene is widely expressed and is required for normal development. It is expressed as 2 alternatively polyadenylated forms displaying different relative abundance in various fetal and adult tissues. The larger transcript is approximately 13.7 kb and is expressed predominantly in adult and fetal brain whereas the smaller transcript of approximately 10.3 kb is more widely expressed. The genetic defect leading to Huntington's disease may not necessarily eliminate transcription, but may confer a new property on the mRNA or alter the function of the protein.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
HD protein homolog; Htt; huntingtin; Huntington disease gene homolog; huntington disease protein; huntington disease protein homolog; IT15
AI256365; C430023I11Rik; HD; Hdh; HTT; IT15